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Frequently Asked Questions
79
Problem Possible cause and solution
Loud noises are heard
during the descaling
program.
This is not a fault.
These noises occur when water is flushed through
the machine at a high pressure.
Please wait... or Preheating
is permanently visible in
the display. No drinks
can be prepared.
Main water connection: On is probably selected and the
coffee system is not connected to the water supply.
Fill the water tank.
Then check the water setting (see "Settings - Main
water").
The display lights up
but the coffee system
does not heat up and no
drinks are made.
The Demo mode of the coffee system has been acti-
vated.
Deactivate the Demo mode (see "Settings - Demo
mode").
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